Reproducible road simulation in climatic chambers, altitude chambers and wind tunnels.

CDM 75L for climatic and altitude chambers as well as wind tunnels

Emission Chassis Dynamometer for use in wind tunnels and climatic chambers to measure e.g. vehicle aerodynamics. Various designs for 2WD and 4WD applications available.



  • Multi-motor principle, each roll has an individual motor
  • Inline-principle
  • Motor-in-the-middle design (MIM)
  • Special thermal isolated test stand design, water-cooled drives
  • Roller dia. 75" (1,905 mm)
  • AC-motor per roll, e.g. 300 kW
  • Test speed, e.g. 300 km/h
  • Temperature range, e.g.: -40 °C ... +60 °C
  • Service aisle with integrated lifting platform to access the underbody of the test vehicle
  • The service platform is used as service pit cover when lifted up in test cell floor position
  • Optionally expandable for water management with rain-/snowfall simulation in wind-tunnels